forked from OSchip/llvm-project
17 lines
407 B
LLVM
17 lines
407 B
LLVM
; RUN: llc < %s -O2 -march=x86-64 | FileCheck %s
|
|
; Checks that a zeroing mov is inserted for the trunc/zext pair even when
|
|
; the source of the zext is an AssertSext node
|
|
; PR20494
|
|
|
|
define i64 @main(i64 %a) {
|
|
; CHECK-LABEL: main
|
|
; CHECK: movl %e{{..}}, %eax
|
|
; CHECK: ret
|
|
%or = or i64 %a, -2
|
|
%trunc = trunc i64 %or to i32
|
|
br label %l
|
|
l:
|
|
%ext = zext i32 %trunc to i64
|
|
ret i64 %ext
|
|
}
|